Point Forecast Matrices
Issued by NWS San Juan, PR
Issued by NWS San Juan, PR
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269 FOCA52 TJSJ 182103 PFMSJU Point Forecast Matrices National Weather Service San Juan PR 503 PM AST Wed Sep 18 2024 PRZ001-190800- Luis Munoz Marin International Airport-San Juan 18.43N 66.00W Elev. 9 ft 503 PM AST Wed Sep 18 2024 Date 09/18/24 Thu 09/19/24 Fri 09/20/24 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 91 80 91 80 Temp 84 83 82 81 87 90 91 86 83 82 81 80 86 90 91 86 83 82 81 80 87 Dewpt 77 77 77 76 77 77 78 78 77 77 77 76 77 77 78 78 77 77 77 76 77 RH 80 82 85 85 72 66 66 77 82 85 88 88 75 66 66 77 82 85 88 88 72 Wind dir E E SE N SE NE NE NE E E S N S NE E E E SE N N S Wind spd 8 5 2 2 1 3 6 6 4 4 2 3 3 5 9 5 3 3 4 4 3 Clouds SC SC SC B2 B2 B2 B1 B2 SC FW SC B2 B1 B1 B2 B2 SC SC SC SC SC PoP 12hr 60 60 50 60 30 QPF 12hr 0.34 0.41 0.24 1.05 0.07 Rain shwrs S S C C L C C C S C C C C L L C C C C C Tstms S S S S S S Heat index 94 91 89 88 98103106 99 93 90 88 86 98103106 99 93 90 88 86 99 Max heat 99 94 98 106 105 91 98 106 105 91 99 Date 09/21 Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 80 91 81 89 79 90 79 90 Temp 92 84 81 86 91 84 82 86 89 82 80 85 90 82 80 85 90 83 Dewpt 77 77 77 77 78 77 77 77 78 78 76 78 78 77 77 78 77 73 PWind dir E S E S SE S E E E Wind char LT LT LT LT LT LT GN LT GN Avg clouds SC SC SC SC SC B1 SC B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 20 40 40 40 20 20 20 20 Rain shwrs C C S S C C C C C S S S S S S S S S Tstms S S $$ PRZ002-190800- Roosevelt Roads Naval Airstation-Ceiba PR 18.25N 65.63W Elev. 39 ft 503 PM AST Wed Sep 18 2024 Date 09/18/24 Thu 09/19/24 Fri 09/20/24 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 79 90 78 91 78 Temp 83 81 80 79 85 89 90 85 82 80 79 78 86 90 91 85 82 80 79 78 85 Dewpt 77 77 77 77 78 77 77 78 77 77 77 76 78 77 77 77 76 77 76 76 77 RH 82 88 91 94 80 68 66 80 85 91 94 94 77 66 64 77 82 91 91 94 77 Wind dir NE NE NE NE N NE NE NE NE NE NE E SE SE SE SE SE SE SE S SE Wind spd 8 6 3 1 1 2 3 4 4 5 4 1 1 5 8 6 3 3 4 4 4 Clouds SC SC SC B1 B2 B1 B2 B2 SC SC SC B1 B2 B2 SC SC SC SC SC SC B1 PoP 12hr 60 60 50 50 40 QPF 12hr 0.27 0.42 0.24 0.27 0.07 Rain shwrs S S C C L C C C S S C C C C C C C C C C C Tstms S S S Heat index 92 88 85 84 97102103 96 89 86 98103104 96 89 87 95 Max heat 96 91 97 105 102 88 98 104 104 88 95 Date 09/21 Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 77 90 78 90 78 90 79 89 Temp 90 81 78 85 90 82 79 85 90 82 79 85 90 82 80 85 89 83 Dewpt 77 77 77 77 77 77 77 78 77 77 76 78 77 77 77 78 77 74 PWind dir SE S S S S SE SE E E Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC SC SC SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 40 30 40 40 40 30 30 30 30 Rain shwrs C S S C C C C C C S S C C C C C C C $$ PRZ007-190800- Mercedita Airport-Ponce PR 18.02N 66.56W Elev. 26 ft 503 PM AST Wed Sep 18 2024 Date 09/18/24 Thu 09/19/24 Fri 09/20/24 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 91 80 91 80 Temp 83 82 81 81 87 90 91 86 83 82 81 80 86 90 91 86 83 82 81 80 86 Dewpt 79 78 75 74 76 77 79 78 78 77 76 76 78 79 78 77 77 77 76 74 77 RH 88 88 82 79 70 66 68 77 85 85 85 88 77 70 66 75 82 85 85 82 75 Wind dir E NE NE NE NE SE SE E NE N N N E SE S SE N N N N E Wind spd 5 5 4 3 2 6 8 3 2 3 3 2 2 9 9 4 2 3 3 4 3 Clouds SC SC CL CL CL CL B2 B2 FW CL CL FW FW FW B2 B2 FW FW FW FW FW PoP 12hr 30 60 5 50 5 QPF 12hr 0.02 0.59 0.01 0.78 0.01 Rain shwrs C S C L S S C C S Tstms S S S S Heat index 94 92 88 87 97103107 99 94 90 87 86 99106106 98 93 90 87 85 98 Max heat 100 94 97 108 106 92 99 107 104 91 98 Date 09/21 Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 80 91 79 91 79 90 79 90 Temp 91 83 81 86 91 83 80 86 91 83 80 85 90 82 80 85 90 83 Dewpt 78 78 77 77 79 78 77 77 79 78 76 78 78 78 76 77 79 73 PWind dir SE E SE E SE E E NE E Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC SC FW FW SC B1 FW FW SC SC SC SC SC SC CL FW SC SC PoP 12hr 20 10 50 5 40 10 40 5 40 Rain shwrs S S S C C C C S S C C S C C Tstms S S S S S S S S $$ PRZ008-190800- Rafael Hernandez Airport-Aguadilla PR 18.50N 67.13W Elev. 237 ft 503 PM AST Wed Sep 18 2024 Date 09/18/24 Thu 09/19/24 Fri 09/20/24 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 89 76 89 75 Temp 81 80 79 78 84 88 89 83 80 78 77 76 84 88 89 83 79 77 76 75 83 Dewpt 76 77 77 76 75 76 77 76 75 77 77 76 75 76 76 75 75 77 76 75 75 RH 85 91 94 94 74 68 68 80 85 97100100 74 68 66 77 88100100100 77 Wind dir E E E E E NE NE NE NE E E E E N N NE E E SE SE SE Wind spd 13 12 11 8 6 6 10 10 10 9 6 6 6 3 5 2 5 8 6 3 3 Clouds SC SC CL SC B1 CL SC SC SC SC SC SC FW FW B1 B1 SC SC SC SC SC PoP 12hr 40 40 20 40 20 QPF 12hr 0.06 0.07 0.05 0.17 0.03 Rain shwrs S S C C S S S S S S S S C C S S S S S Heat index 87 85 93 99101 92 85 91 99100 90 83 90 Max heat 94 87 93 101 101 83 91 101 99 90 Date 09/21 Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 75 88 75 90 74 87 74 87 Temp 88 79 76 83 88 79 76 84 90 79 75 82 87 78 75 82 87 79 Dewpt 75 74 76 75 76 74 76 75 76 75 75 75 75 75 75 75 76 75 PWind dir N E W SE S SE NE E E Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC B1 SC SC SC SC SC SC SC SC SC SC SC B1 CL FW SC SC PoP 12hr 50 10 20 10 30 30 60 5 40 Rain shwrs C C S S S S S S C C C C L L S C C Tstms S S S S S S $$ PRZ010-190800- Eugenio Maria de Hosto Airport-Mayaguez PR 18.27N 67.15W Elev. 28 ft 503 PM AST Wed Sep 18 2024 Date 09/18/24 Thu 09/19/24 Fri 09/20/24 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 92 76 92 75 Temp 82 80 79 78 86 91 92 85 81 79 77 76 85 91 92 85 80 78 76 75 84 Dewpt 78 78 77 75 77 79 80 78 77 77 76 76 78 80 80 77 77 77 76 75 78 RH 88 94 94 91 75 68 68 80 88 94 97100 80 70 68 77 91 97100100 82 Wind dir NE NE NE E E E W NE NE NE E E E SW W NE E E SE N SE Wind spd 9 8 8 6 3 2 6 8 9 6 5 5 4 2 6 1 4 5 5 3 4 Clouds SC FW CL SC SC SC B2 B2 SC CL CL SC FW FW B2 B2 SC SC SC SC FW PoP 12hr 30 60 10 60 5 QPF 12hr 0.04 0.69 0.01 0.94 0.01 Rain shwrs C S S S C L S S L L S S S S Tstms S S S S Heat index 91 86 97107110 97 88 97109110 95 87 95 Max heat 96 90 97 111 109 85 97 111 108 83 95 Date 09/21 Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 75 91 75 93 74 90 74 90 Temp 91 80 76 84 91 80 76 85 93 80 75 83 90 79 75 83 90 80 Dewpt 79 77 76 78 79 77 76 78 80 77 75 78 79 77 75 78 80 74 PWind dir SW E S E SE E SE E NE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC CL FW SC SC FW FW SC B1 SC SC SC B1 CL FW SC SC PoP 12hr 40 5 40 5 60 20 60 5 50 Rain shwrs C C C C L L S S L L C C Tstms S S S S S S S S S S $$ VIZ001-190800- CYRIL E. King Airport-St Thomas USVI 18.33N 64.97W Elev. 23 ft 503 PM AST Wed Sep 18 2024 Date 09/18/24 Thu 09/19/24 Fri 09/20/24 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 81 89 79 90 81 Temp 84 82 81 81 86 88 89 85 82 81 80 79 85 89 90 86 84 82 81 81 86 Dewpt 77 78 78 77 78 77 77 77 77 77 77 76 77 77 76 77 76 76 77 76 76 RH 80 88 91 88 77 70 68 77 85 88 91 91 77 68 64 75 77 82 88 85 72 Wind dir NE NE NE NE E NE E NE NE NE E E SE SE SE SE E SE SE SE SE Wind spd 11 10 8 4 3 1 2 2 4 8 5 4 3 4 4 3 4 5 8 6 6 Clouds SC SC SC B1 SC B1 B2 B2 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 40 50 30 30 20 QPF 12hr 0.13 0.32 0.08 0.10 0.05 Rain shwrs S S S C C C C C S S S S C C S S S S S S S Tstms S S Heat index 94 92 90 89 98101101 95 90 88 85 84 96102102 97 92 90 89 88 95 Max heat 98 93 98 102 101 89 96 102 101 91 95 Date 09/21 Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 81 89 80 88 80 90 80 89 Temp 89 83 81 86 89 83 80 85 88 82 80 86 90 83 81 85 89 83 Dewpt 75 76 76 77 76 76 77 77 77 77 77 77 77 78 77 78 77 75 PWind dir SE SE S S SE SE E E E Wind char LT LT LT GN LT LT GN GN GN Avg clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 20 20 40 40 20 20 20 20 Rain shwrs S S S S S S S C C S S S S S S S S S $$ VIZ002-190800- Henry E. Rohlsen Airport-St Croix USVI 17.70N 64.80W Elev. 74 ft 503 PM AST Wed Sep 18 2024 Date 09/18/24 Thu 09/19/24 Fri 09/20/24 Sat AST 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 78 90 79 91 79 Temp 82 80 79 78 85 89 90 85 82 81 80 79 86 90 91 86 83 81 80 79 86 Dewpt 78 78 78 77 78 78 77 77 77 77 76 76 77 77 77 76 76 76 76 76 77 RH 88 94 97 97 80 70 66 77 85 88 88 91 75 66 64 72 80 85 88 91 75 Wind dir NE NE NE NE E E E E NE E E SE SE SE S SE SE E SE SE SE Wind spd 10 10 8 5 4 3 1 1 3 4 3 3 4 6 6 5 5 5 6 5 6 Clouds SC SC SC B2 B1 B1 B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 50 30 30 20 QPF 12hr 0.23 0.25 0.07 0.10 0.03 Rain shwrs S S S C C C C C S S S S C C S S S S S S S Tstms S S Heat index 91 88 97103103 96 91 88 84 84 97103104 96 90 87 84 84 97 Max heat 96 90 97 105 102 89 97 105 103 89 97 Date 09/21 Sun 09/22/24 Mon 09/23/24 Tue 09/24/24 Wed 09/25/24 AST 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 79 91 79 90 80 91 79 90 Temp 91 83 80 86 91 83 80 85 90 83 81 86 91 83 80 85 90 82 Dewpt 77 77 77 78 77 76 77 78 77 77 77 78 78 77 77 78 78 75 PWind dir SE SE S SE SE E E E E Wind char LT LT LT LT GN LT GN GN GN Avg clouds SC SC SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 40 40 20 20 20 20 20 20 Rain shwrs C C C C C S S S S S S S S S S S S S $$